chore: remove About link from header and language switcher from about pages

- Remove About link and sponsor notice icon from chat panel header
- Remove language switcher (English | 中文 | 日本語) from all about pages
- Fix About link in settings dialog to use current language
- Remove unused sponsorTooltip translation key from all dictionaries

.gitignore

@@ -62,4 +62,7 @@ push-via-ec2.sh
 *.snap
 
 CLAUDE.md
-.spec-workflow
+.spec-workflow
+
+# edgeone
+.edgeone

README.md

@@ -237,6 +237,18 @@ npm run dev
 
 ## Deployment
 
+### Deploy to EdgeOne Pages
+
+You can deploy with one click using [Tencent EdgeOne Pages](https://pages.edgeone.ai/).
+
+Deploy by this button: 
+
+[![Deploy to EdgeOne Pages](https://cdnstatic.tencentcs.com/edgeone/pages/deploy.svg)](https://edgeone.ai/pages/new?repository-url=https%3A%2F%2Fgithub.com%2FDayuanJiang%2Fnext-ai-draw-io)
+
+Check out the [Tencent EdgeOne Pages documentation](https://pages.edgeone.ai/document/deployment-overview) for more details.
+
+Additionally, deploying through Tencent EdgeOne Pages will also grant you a [daily free quota for DeepSeek models](https://pages.edgeone.ai/document/edge-ai).
+
 ### Deploy on Vercel (Recommended)
 
 [![Deploy with Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https%3A%2F%2Fgithub.com%2FDayuanJiang%2Fnext-ai-draw-io)

app/[lang]/about/cn/page.tsx

@@ -72,28 +72,6 @@ export default function AboutCN() {
                         <p className="text-xl text-gray-600 font-medium">
                             AI驱动的图表创建工具 - 对话、绘制、可视化
                         </p>
-                        <div className="flex justify-center gap-4 mt-4 text-sm">
-                            <Link
-                                href="/about"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                English
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/cn"
-                                className="text-blue-600 font-semibold"
-                            >
-                                中文
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/ja"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                日本語
-                            </Link>
-                        </div>
                     </div>
 
                     <div className="relative mb-8 rounded-2xl bg-gradient-to-br from-amber-50 via-orange-50 to-yellow-50 p-[1px] shadow-lg">

app/[lang]/about/ja/page.tsx

@@ -80,28 +80,6 @@ export default function AboutJA() {
                             AI搭載のダイアグラム作成ツール -
                             チャット、描画、可視化
                         </p>
-                        <div className="flex justify-center gap-4 mt-4 text-sm">
-                            <Link
-                                href="/about"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                English
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/cn"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                中文
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/ja"
-                                className="text-blue-600 font-semibold"
-                            >
-                                日本語
-                            </Link>
-                        </div>
                     </div>
 
                     <div className="relative mb-8 rounded-2xl bg-gradient-to-br from-amber-50 via-orange-50 to-yellow-50 p-[1px] shadow-lg">

app/[lang]/about/page.tsx

@@ -80,28 +80,6 @@ export default function About() {
                             AI-Powered Diagram Creation Tool - Chat, Draw,
                             Visualize
                         </p>
-                        <div className="flex justify-center gap-4 mt-4 text-sm">
-                            <Link
-                                href="/about"
-                                className="text-blue-600 font-semibold"
-                            >
-                                English
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/cn"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                中文
-                            </Link>
-                            <span className="text-gray-400">|</span>
-                            <Link
-                                href="/about/ja"
-                                className="text-gray-600 hover:text-blue-600"
-                            >
-                                日本語
-                            </Link>
-                        </div>
                     </div>
 
                     <div className="relative mb-8 rounded-2xl bg-gradient-to-br from-amber-50 via-orange-50 to-yellow-50 p-[1px] shadow-lg">

app/api/chat/route.ts

@@ -244,9 +244,22 @@ async function handleChatRequest(req: Request): Promise<Response> {
     // === CACHE CHECK END ===
 
     // Read client AI provider overrides from headers
+    const provider = req.headers.get("x-ai-provider")
+    let baseUrl = req.headers.get("x-ai-base-url")
+
+    // For EdgeOne provider, construct full URL from request origin
+    // because createOpenAI needs absolute URL, not relative path
+    if (provider === "edgeone" && !baseUrl) {
+        const origin = req.headers.get("origin") || new URL(req.url).origin
+        baseUrl = `${origin}/api/edgeai`
+    }
+
+    // Get cookie header for EdgeOne authentication (eo_token, eo_time)
+    const cookieHeader = req.headers.get("cookie")
+
     const clientOverrides = {
-        provider: req.headers.get("x-ai-provider"),
-        baseUrl: req.headers.get("x-ai-base-url"),
+        provider,
+        baseUrl,
         apiKey: req.headers.get("x-ai-api-key"),
         modelId: req.headers.get("x-ai-model"),
         // AWS Bedrock credentials
@@ -254,6 +267,11 @@ async function handleChatRequest(req: Request): Promise<Response> {
         awsSecretAccessKey: req.headers.get("x-aws-secret-access-key"),
         awsRegion: req.headers.get("x-aws-region"),
         awsSessionToken: req.headers.get("x-aws-session-token"),
+        // Pass cookies for EdgeOne Pages authentication
+        ...(provider === "edgeone" &&
+            cookieHeader && {
+                headers: { cookie: cookieHeader },
+            }),
     }
 
     // Read minimal style preference from header
@@ -605,7 +623,7 @@ Notes:
 Operations:
 - update: Replace an existing cell by its id. Provide cell_id and complete new_xml.
 - add: Add a new cell. Provide cell_id (new unique id) and new_xml.
-- delete: Remove a cell by its id. Only cell_id is needed.
+- delete: Remove a cell. Cascade is automatic: children AND edges (source/target) are auto-deleted. Only specify ONE cell_id.
 
 For update/add, new_xml must be a complete mxCell element including mxGeometry.
 
@@ -614,8 +632,8 @@ For update/add, new_xml must be a complete mxCell element including mxGeometry.
 Example - Add a rectangle:
 {"operations": [{"operation": "add", "cell_id": "rect-1", "new_xml": "<mxCell id=\\"rect-1\\" value=\\"Hello\\" style=\\"rounded=0;\\" vertex=\\"1\\" parent=\\"1\\"><mxGeometry x=\\"100\\" y=\\"100\\" width=\\"120\\" height=\\"60\\" as=\\"geometry\\"/></mxCell>"}]}
 
-Example - Delete a cell:
-{"operations": [{"operation": "delete", "cell_id": "rect-1"}]}`,
+Example - Delete container (children & edges auto-deleted):
+{"operations": [{"operation": "delete", "cell_id": "2"}]}`,
                 inputSchema: z.object({
                     operations: z
                         .array(

app/api/validate-model/route.ts

@@ -121,7 +121,7 @@ export async function POST(req: Request) {
                     { status: 400 },
                 )
             }
-        } else if (provider !== "ollama" && !apiKey) {
+        } else if (provider !== "ollama" && provider !== "edgeone" && !apiKey) {
             return NextResponse.json(
                 { valid: false, error: "API key is required" },
                 { status: 400 },
@@ -225,6 +225,21 @@ export async function POST(req: Request) {
                 break
             }
 
+            case "edgeone": {
+                // EdgeOne uses OpenAI-compatible API via Edge Functions
+                // Need to pass cookies for EdgeOne Pages authentication
+                const cookieHeader = req.headers.get("cookie") || ""
+                const edgeone = createOpenAI({
+                    apiKey: "edgeone", // EdgeOne doesn't require API key
+                    baseURL: baseUrl || "/api/edgeai",
+                    headers: {
+                        cookie: cookieHeader,
+                    },
+                })
+                model = edgeone.chat(modelId)
+                break
+            }
+
             case "sglang": {
                 // SGLang is OpenAI-compatible
                 const sglang = createOpenAI({

components/chat-message-display.tsx

@@ -27,6 +27,7 @@ import {
     ReasoningTrigger,
 } from "@/components/ai-elements/reasoning"
 import { ScrollArea } from "@/components/ui/scroll-area"
+import { useDictionary } from "@/hooks/use-dictionary"
 import { getApiEndpoint } from "@/lib/base-path"
 import {
     applyDiagramOperations,
@@ -205,6 +206,7 @@ export function ChatMessageDisplay({
     onEditMessage,
     status = "idle",
 }: ChatMessageDisplayProps) {
+    const dict = useDictionary()
     const { chartXML, loadDiagram: onDisplayChart } = useDiagram()
     const messagesEndRef = useRef<HTMLDivElement>(null)
     const previousXML = useRef<string>("")
@@ -268,9 +270,7 @@ export function ChatMessageDisplay({
                 setTimeout(() => setCopiedMessageId(null), 2000)
             } catch (fallbackErr) {
                 console.error("Failed to copy message:", fallbackErr)
-                toast.error(
-                    "Failed to copy message. Please copy manually or check clipboard permissions.",
-                )
+                toast.error(dict.chat.failedToCopyDetail)
                 setCopyFailedMessageId(messageId)
                 setTimeout(() => setCopyFailedMessageId(null), 2000)
             } finally {
@@ -304,7 +304,7 @@ export function ChatMessageDisplay({
             })
         } catch (error) {
             console.error("Failed to log feedback:", error)
-            toast.error("Failed to record your feedback. Please try again.")
+            toast.error(dict.errors.failedToRecordFeedback)
             // Revert optimistic UI update
             setFeedback((prev) => {
                 const next = { ...prev }
@@ -349,9 +349,7 @@ export function ChatMessageDisplay({
                         console.error(
                             "[ChatMessageDisplay] Malformed XML detected in final output",
                         )
-                        toast.error(
-                            "AI generated invalid diagram XML. Please try regenerating.",
-                        )
+                        toast.error(dict.errors.malformedXml)
                     }
                     return // Skip this update
                 }
@@ -402,9 +400,7 @@ export function ChatMessageDisplay({
                             "[ChatMessageDisplay] XML validation failed:",
                             validation.error,
                         )
-                        toast.error(
-                            "Diagram validation failed. Please try regenerating.",
-                        )
+                        toast.error(dict.errors.validationFailed)
                     }
                 } catch (error) {
                     console.error(
@@ -413,9 +409,7 @@ export function ChatMessageDisplay({
                     )
                     // Only show toast if this is the final XML (not during streaming)
                     if (showToast) {
-                        toast.error(
-                            "Failed to process diagram. Please try regenerating.",
-                        )
+                        toast.error(dict.errors.failedToProcess)
                     }
                 }
             }
@@ -832,7 +826,10 @@ export function ChatMessageDisplay({
                                                             )
                                                         }}
                                                         className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted transition-colors"
-                                                        title="Edit message"
+                                                        title={
+                                                            dict.chat
+                                                                .editMessage
+                                                        }
                                                     >
                                                         <Pencil className="h-3.5 w-3.5" />
                                                     </button>
@@ -849,11 +846,13 @@ export function ChatMessageDisplay({
                                                 title={
                                                     copiedMessageId ===
                                                     message.id
-                                                        ? "Copied!"
+                                                        ? dict.chat.copied
                                                         : copyFailedMessageId ===
                                                             message.id
-                                                          ? "Failed to copy"
-                                                          : "Copy message"
+                                                          ? dict.chat
+                                                                .failedToCopy
+                                                          : dict.chat
+                                                                .copyResponse
                                                 }
                                             >
                                                 {copiedMessageId ===
@@ -968,7 +967,7 @@ export function ChatMessageDisplay({
                                                     }}
                                                     className="px-3 py-1.5 text-xs rounded-lg bg-muted hover:bg-muted/80 transition-colors"
                                                 >
-                                                    Cancel
+                                                    {dict.common.cancel}
                                                 </button>
                                                 <button
                                                     type="button"
@@ -990,7 +989,7 @@ export function ChatMessageDisplay({
                                                     disabled={!editText.trim()}
                                                     className="px-3 py-1.5 text-xs rounded-lg bg-primary text-primary-foreground hover:bg-primary/90 disabled:opacity-50 transition-colors"
                                                 >
-                                                    Save & Submit
+                                                    {dict.chat.saveAndSubmit}
                                                 </button>
                                             </div>
                                         </div>
@@ -1123,7 +1122,8 @@ export function ChatMessageDisplay({
                                                                     "user" &&
                                                                 isLastUserMessage &&
                                                                 onEditMessage
-                                                                    ? "Click to edit"
+                                                                    ? dict.chat
+                                                                          .clickToEdit
                                                                     : undefined
                                                             }
                                                         >
@@ -1325,8 +1325,8 @@ export function ChatMessageDisplay({
                                                 title={
                                                     copiedMessageId ===
                                                     message.id
-                                                        ? "Copied!"
-                                                        : "Copy response"
+                                                        ? dict.chat.copied
+                                                        : dict.chat.copyResponse
                                                 }
                                             >
                                                 {copiedMessageId ===
@@ -1352,7 +1352,9 @@ export function ChatMessageDisplay({
                                                             )
                                                         }
                                                         className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-foreground hover:bg-muted transition-colors"
-                                                        title="Regenerate response"
+                                                        title={
+                                                            dict.chat.regenerate
+                                                        }
                                                     >
                                                         <RotateCcw className="h-3.5 w-3.5" />
                                                     </button>
@@ -1374,7 +1376,7 @@ export function ChatMessageDisplay({
                                                         ? "text-green-600 bg-green-100"
                                                         : "text-muted-foreground/60 hover:text-green-600 hover:bg-green-50"
                                                 }`}
-                                                title="Good response"
+                                                title={dict.chat.goodResponse}
                                             >
                                                 <ThumbsUp className="h-3.5 w-3.5" />
                                             </button>
@@ -1393,7 +1395,7 @@ export function ChatMessageDisplay({
                                                         ? "text-red-600 bg-red-100"
                                                         : "text-muted-foreground/60 hover:text-red-600 hover:bg-red-50"
                                                 }`}
-                                                title="Bad response"
+                                                title={dict.chat.badResponse}
                                             >
                                                 <ThumbsDown className="h-3.5 w-3.5" />
                                             </button>

components/chat-panel.tsx

@@ -3,14 +3,12 @@
 import { useChat } from "@ai-sdk/react"
 import { DefaultChatTransport } from "ai"
 import {
-    AlertTriangle,
     MessageSquarePlus,
     PanelRightClose,
     PanelRightOpen,
     Settings,
 } from "lucide-react"
 import Image from "next/image"
-import Link from "next/link"
 import type React from "react"
 import { useCallback, useEffect, useRef, useState } from "react"
 import { flushSync } from "react-dom"
@@ -26,6 +24,7 @@ import { useDictionary } from "@/hooks/use-dictionary"
 import { getSelectedAIConfig, useModelConfig } from "@/hooks/use-model-config"
 import { getApiEndpoint } from "@/lib/base-path"
 import { findCachedResponse } from "@/lib/cached-responses"
+import { formatMessage } from "@/lib/i18n/utils"
 import { isPdfFile, isTextFile } from "@/lib/pdf-utils"
 import { type FileData, useFileProcessor } from "@/lib/use-file-processor"
 import { useQuotaManager } from "@/lib/use-quota-manager"
@@ -389,7 +388,9 @@ export default function ChatPanel({
                         MAX_CONTINUATION_RETRY_COUNT
                     ) {
                         toast.error(
-                            `Continuation retry limit reached (${MAX_CONTINUATION_RETRY_COUNT}). The diagram may be too complex.`,
+                            formatMessage(dict.errors.continuationRetryLimit, {
+                                max: MAX_CONTINUATION_RETRY_COUNT,
+                            }),
                         )
                         continuationRetryCountRef.current = 0
                         partialXmlRef.current = ""
@@ -400,7 +401,9 @@ export default function ChatPanel({
                     // Regular error: check retry count limit
                     if (autoRetryCountRef.current >= MAX_AUTO_RETRY_COUNT) {
                         toast.error(
-                            `Auto-retry limit reached (${MAX_AUTO_RETRY_COUNT}). Please try again manually.`,
+                            formatMessage(dict.errors.retryLimit, {
+                                max: MAX_AUTO_RETRY_COUNT,
+                            }),
                         )
                         autoRetryCountRef.current = 0
                         partialXmlRef.current = ""
@@ -450,7 +453,7 @@ export default function ChatPanel({
             // On complete failure, clear storage to allow recovery
             localStorage.removeItem(STORAGE_MESSAGES_KEY)
             localStorage.removeItem(STORAGE_XML_SNAPSHOTS_KEY)
-            toast.error("Session data was corrupted. Starting fresh.")
+            toast.error(dict.errors.sessionCorrupted)
         }
     }, [setMessages])
 
@@ -651,12 +654,10 @@ export default function ChatPanel({
             localStorage.removeItem(STORAGE_DIAGRAM_XML_KEY)
             localStorage.setItem(STORAGE_SESSION_ID_KEY, newSessionId)
             sessionStorage.removeItem(SESSION_STORAGE_INPUT_KEY)
-            toast.success("Started a fresh chat")
+            toast.success(dict.dialogs.clearSuccess)
         } catch (error) {
             console.error("Failed to clear localStorage:", error)
-            toast.warning(
-                "Chat cleared but browser storage could not be updated",
-            )
+            toast.warning(dict.errors.storageUpdateFailed)
         }
 
         setShowNewChatDialog(false)
@@ -889,7 +890,7 @@ export default function ChatPanel({
         return (
             <div className="h-full flex flex-col items-center pt-4 bg-card border border-border/30 rounded-xl">
                 <ButtonWithTooltip
-                    tooltipContent="Show chat panel (Ctrl+B)"
+                    tooltipContent={dict.nav.showPanel}
                     variant="ghost"
                     size="icon"
                     onClick={onToggleVisibility}
@@ -904,7 +905,7 @@ export default function ChatPanel({
                         transform: "rotate(180deg)",
                     }}
                 >
-                    AI Chat
+                    {dict.nav.aiChat}
                 </div>
             </div>
         )
@@ -949,32 +950,6 @@ export default function ChatPanel({
                                 Next AI Drawio
                             </h1>
                         </div>
-                        {!isMobile && (
-                            <Link
-                                href="/about"
-                                target="_blank"
-                                rel="noopener noreferrer"
-                                className="text-sm text-muted-foreground hover:text-foreground transition-colors ml-2"
-                            >
-                                About
-                            </Link>
-                        )}
-                        {!isMobile && (
-                            <Link
-                                href="/about"
-                                target="_blank"
-                                rel="noopener noreferrer"
-                            >
-                                <ButtonWithTooltip
-                                    tooltipContent="Sponsored by ByteDance Doubao K2-thinking. See About page for details."
-                                    variant="ghost"
-                                    size="icon"
-                                    className="h-6 w-6 text-amber-500 hover:text-amber-600"
-                                >
-                                    <AlertTriangle className="h-4 w-4" />
-                                </ButtonWithTooltip>
-                            </Link>
-                        )}
                     </div>
                     <div className="flex items-center gap-1 justify-end overflow-visible">
                         <ButtonWithTooltip

components/dev-xml-simulator.tsx

@@ -1,6 +1,7 @@
 "use client"
 
 import { useEffect, useRef, useState } from "react"
+import { useDictionary } from "@/hooks/use-dictionary"
 import { wrapWithMxFile } from "@/lib/utils"
 
 // Dev XML presets for streaming simulator
@@ -142,6 +143,7 @@ export function DevXmlSimulator({
     onDisplayChart,
     onShowQuotaToast,
 }: DevXmlSimulatorProps) {
+    const dict = useDictionary()
     const [devXml, setDevXml] = useState("")
     const [isSimulating, setIsSimulating] = useState(false)
     const [devIntervalMs, setDevIntervalMs] = useState(1)
@@ -178,7 +180,7 @@ export function DevXmlSimulator({
             parts: [
                 {
                     type: "text" as const,
-                    text: "[Dev] Simulating XML streaming",
+                    text: dict.dev.simulatingMessage,
                 },
             ],
         }
@@ -228,7 +230,7 @@ export function DevXmlSimulator({
             const lastMsg = updated[updated.length - 1] as any
             if (lastMsg?.role === "assistant" && lastMsg.parts?.[0]) {
                 lastMsg.parts[0].state = "output-available"
-                lastMsg.parts[0].output = "Successfully displayed the diagram."
+                lastMsg.parts[0].output = dict.dev.successMessage
                 lastMsg.parts[0].input = { xml }
             }
             return updated
@@ -245,12 +247,12 @@ export function DevXmlSimulator({
         <div className="border-t border-dashed border-orange-500/50 px-4 py-2 bg-orange-50/50 dark:bg-orange-950/30">
             <details>
                 <summary className="text-xs text-orange-600 dark:text-orange-400 cursor-pointer font-medium">
-                    Dev: XML Streaming Simulator
+                    {dict.dev.title}
                 </summary>
                 <div className="mt-2 space-y-2">
                     <div className="flex items-center gap-2">
                         <label className="text-xs text-muted-foreground whitespace-nowrap">
-                            Preset:
+                            {dict.dev.preset}
                         </label>
                         <select
                             onChange={(e) => {
@@ -262,7 +264,7 @@ export function DevXmlSimulator({
                             defaultValue=""
                         >
                             <option value="" disabled>
-                                Select a preset...
+                                {dict.dev.selectPreset}
                             </option>
                             {Object.keys(DEV_XML_PRESETS).map((name) => (
                                 <option key={name} value={name}>
@@ -275,19 +277,19 @@ export function DevXmlSimulator({
                             onClick={() => setDevXml("")}
                             className="px-2 py-1 text-xs text-muted-foreground hover:text-foreground border rounded"
                         >
-                            Clear
+                            {dict.dev.clear}
                         </button>
                     </div>
                     <textarea
                         value={devXml}
                         onChange={(e) => setDevXml(e.target.value)}
-                        placeholder="Paste mxCell XML here or select a preset..."
+                        placeholder={dict.dev.placeholder}
                         className="w-full h-24 text-xs font-mono p-2 border rounded bg-background"
                     />
                     <div className="flex items-center gap-4">
                         <div className="flex items-center gap-2 flex-1">
                             <label className="text-xs text-muted-foreground whitespace-nowrap">
-                                Interval:
+                                {dict.dev.interval}
                             </label>
                             <input
                                 type="range"
@@ -306,7 +308,7 @@ export function DevXmlSimulator({
                         </div>
                         <div className="flex items-center gap-2">
                             <label className="text-xs text-muted-foreground whitespace-nowrap">
-                                Chars:
+                                {dict.dev.chars}
                             </label>
                             <input
                                 type="number"
@@ -330,8 +332,8 @@ export function DevXmlSimulator({
                             className="px-3 py-1 text-xs bg-orange-500 text-white rounded hover:bg-orange-600 disabled:opacity-50 disabled:cursor-not-allowed"
                         >
                             {isSimulating
-                                ? "Streaming..."
-                                : `Simulate (${devChunkSize} chars/${devIntervalMs}ms)`}
+                                ? dict.dev.streaming
+                                : `${dict.dev.simulate} (${devChunkSize} chars/${devIntervalMs}ms)`}
                         </button>
                         {isSimulating && (
                             <button
@@ -341,7 +343,7 @@ export function DevXmlSimulator({
                                 }}
                                 className="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600"
                             >
-                                Stop
+                                {dict.dev.stop}
                             </button>
                         )}
                         {onShowQuotaToast && (
@@ -350,7 +352,7 @@ export function DevXmlSimulator({
                                 onClick={onShowQuotaToast}
                                 className="px-3 py-1 text-xs bg-purple-500 text-white rounded hover:bg-purple-600"
                             >
-                                Test Quota Toast
+                                {dict.dev.testQuotaToast}
                             </button>
                         )}
                     </div>

components/model-config-dialog.tsx

@@ -78,6 +78,7 @@ const PROVIDER_LOGO_MAP: Record<string, string> = {
     siliconflow: "siliconflow",
     sglang: "openai", // SGLang is OpenAI-compatible
     gateway: "vercel",
+    edgeone: "tencent-cloud",
     doubao: "bytedance",
 }
 
@@ -277,6 +278,7 @@ export function ModelConfigDialog({
 
         // Check credentials based on provider type
         const isBedrock = selectedProvider.provider === "bedrock"
+        const isEdgeOne = selectedProvider.provider === "edgeone"
         if (isBedrock) {
             if (
                 !selectedProvider.awsAccessKeyId ||
@@ -285,7 +287,7 @@ export function ModelConfigDialog({
             ) {
                 return
             }
-        } else if (!selectedProvider.apiKey) {
+        } else if (!isEdgeOne && !selectedProvider.apiKey) {
             return
         }
 
@@ -308,13 +310,18 @@ export function ModelConfigDialog({
             setValidatingModelIndex(i)
 
             try {
+                // For EdgeOne, construct baseUrl from current origin
+                const baseUrl = isEdgeOne
+                    ? `${window.location.origin}/api/edgeai`
+                    : selectedProvider.baseUrl
+
                 const response = await fetch("/api/validate-model", {
                     method: "POST",
                     headers: { "Content-Type": "application/json" },
                     body: JSON.stringify({
                         provider: selectedProvider.provider,
                         apiKey: selectedProvider.apiKey,
-                        baseUrl: selectedProvider.baseUrl,
+                        baseUrl,
                         modelId: model.modelId,
                         // AWS Bedrock credentials
                         awsAccessKeyId: selectedProvider.awsAccessKeyId,
@@ -322,7 +329,6 @@ export function ModelConfigDialog({
                         awsRegion: selectedProvider.awsRegion,
                     }),
                 })
-
                 const data = await response.json()
 
                 if (data.valid) {
@@ -876,6 +882,63 @@ export function ModelConfigDialog({
                                                                 )}
                                                         </div>
                                                     </>
+                                                ) : selectedProvider.provider ===
+                                                  "edgeone" ? (
+                                                    <div className="space-y-3">
+                                                        <div className="flex items-center gap-2">
+                                                            <Button
+                                                                variant={
+                                                                    validationStatus ===
+                                                                    "success"
+                                                                        ? "outline"
+                                                                        : "default"
+                                                                }
+                                                                size="sm"
+                                                                onClick={
+                                                                    handleValidate
+                                                                }
+                                                                disabled={
+                                                                    validationStatus ===
+                                                                    "validating"
+                                                                }
+                                                                className={cn(
+                                                                    "h-9 px-4",
+                                                                    validationStatus ===
+                                                                        "success" &&
+                                                                        "text-success border-success/30 bg-success-muted hover:bg-success-muted",
+                                                                )}
+                                                            >
+                                                                {validationStatus ===
+                                                                "validating" ? (
+                                                                    <Loader2 className="h-4 w-4 animate-spin" />
+                                                                ) : validationStatus ===
+                                                                  "success" ? (
+                                                                    <>
+                                                                        <Check className="h-4 w-4 mr-1.5" />
+                                                                        {
+                                                                            dict
+                                                                                .modelConfig
+                                                                                .verified
+                                                                        }
+                                                                    </>
+                                                                ) : (
+                                                                    dict
+                                                                        .modelConfig
+                                                                        .test
+                                                                )}
+                                                            </Button>
+                                                            {validationStatus ===
+                                                                "error" &&
+                                                                validationError && (
+                                                                    <p className="text-xs text-destructive flex items-center gap-1">
+                                                                        <X className="h-3 w-3" />
+                                                                        {
+                                                                            validationError
+                                                                        }
+                                                                    </p>
+                                                                )}
+                                                        </div>
+                                                    </div>
                                                 ) : (
                                                     <>
                                                         {/* API Key */}

components/model-selector.tsx

@@ -48,6 +48,7 @@ const PROVIDER_LOGO_MAP: Record<string, string> = {
     siliconflow: "siliconflow",
     sglang: "openai", // SGLang is OpenAI-compatible, use OpenAI logo
     gateway: "vercel",
+    edgeone: "tencent-cloud",
     doubao: "bytedance",
 }
 

components/settings-dialog.tsx

@@ -395,13 +395,13 @@ function SettingsContent({
                         <>
                             <span className="text-muted-foreground">·</span>
                             <a
-                                href="/about"
+                                href={`/${currentLang}/about${currentLang === "zh" ? "/cn" : currentLang === "ja" ? "/ja" : ""}`}
                                 target="_blank"
                                 rel="noopener noreferrer"
                                 className="text-xs text-muted-foreground hover:text-foreground transition-colors flex items-center gap-1"
                             >
                                 <Info className="h-3 w-3" />
-                                About
+                                {dict.nav.about}
                             </a>
                         </>
                     )}

docs/README_CN.md

@@ -206,6 +206,19 @@ npm run dev
 
 ## 部署
 
+### 部署到腾讯云EdgeOne Pages
+
+您可以通过[腾讯云EdgeOne Pages](https://pages.edgeone.ai/zh)一键部署。
+
+直接点击此按钮一键部署：
+[![使用 EdgeOne Pages 部署](https://cdnstatic.tencentcs.com/edgeone/pages/deploy.svg)](https://console.cloud.tencent.com/edgeone/pages/new?repository-url=https%3A%2F%2Fgithub.com%2FDayuanJiang%2Fnext-ai-draw-io)
+
+查看[腾讯云EdgeOne Pages文档](https://pages.edgeone.ai/zh/document/product-introduction)了解更多详情。
+
+同时，通过腾讯云EdgeOne Pages部署，也会获得[每日免费的DeepSeek模型额度](https://edgeone.cloud.tencent.com/pages/document/169925463311781888)。
+
+### 部署到Vercel
+
 部署Next.js应用最简单的方式是使用Next.js创建者提供的[Vercel平台](https://vercel.com/new)。
 
 查看[Next.js部署文档](https://nextjs.org/docs/app/building-your-application/deploying)了解更多详情。

docs/README_JA.md

@@ -206,6 +206,20 @@ npm run dev
 
 ## デプロイ
 
+### EdgeOne Pagesへのデプロイ
+
+[Tencent EdgeOne Pages](https://pages.edgeone.ai/)を使用してワンクリックでデプロイできます。
+
+このボタンでデプロイ：
+
+[![Deploy to EdgeOne Pages](https://cdnstatic.tencentcs.com/edgeone/pages/deploy.svg)](https://edgeone.ai/pages/new?repository-url=https%3A%2F%2Fgithub.com%2FDayuanJiang%2Fnext-ai-draw-io)
+
+詳細は[Tencent EdgeOne Pagesドキュメント](https://pages.edgeone.ai/document/deployment-overview)をご覧ください。
+
+また、Tencent EdgeOne Pagesでデプロイすると、[DeepSeekモデルの毎日の無料クォータ](https://pages.edgeone.ai/document/edge-ai)が付与されます。
+
+### Vercelへのデプロイ
+
 Next.jsアプリをデプロイする最も簡単な方法は、Next.jsの作成者による[Vercelプラットフォーム](https://vercel.com/new)を使用することです。
 
 詳細は[Next.jsデプロイメントドキュメント](https://nextjs.org/docs/app/building-your-application/deploying)をご覧ください。

edge-functions/api/edgeai/chat/completions.ts

@@ -0,0 +1,270 @@
+/**
+ * EdgeOne Pages Edge Function for OpenAI-compatible Chat Completions API
+ *
+ * This endpoint provides an OpenAI-compatible API that can be used with
+ * AI SDK's createOpenAI({ baseURL: '/api/edgeai' })
+ *
+ * Uses EdgeOne Edge AI's AI.chatCompletions() which now supports native tool calling.
+ */
+
+import { z } from "zod"
+
+// EdgeOne Pages global AI object
+declare const AI: {
+    chatCompletions(options: {
+        model: string
+        messages: Array<{ role: string; content: string | null }>
+        stream?: boolean
+        max_tokens?: number
+        temperature?: number
+        tools?: any
+        tool_choice?: any
+    }): Promise<ReadableStream<Uint8Array> | any>
+}
+
+const messageItemSchema = z
+    .object({
+        role: z.enum(["user", "assistant", "system", "tool", "function"]),
+        content: z.string().nullable().optional(),
+    })
+    .passthrough()
+
+const messageSchema = z
+    .object({
+        messages: z.array(messageItemSchema),
+        model: z.string().optional(),
+        stream: z.boolean().optional(),
+        tools: z.any().optional(),
+        tool_choice: z.any().optional(),
+        functions: z.any().optional(),
+        function_call: z.any().optional(),
+        temperature: z.number().optional(),
+        top_p: z.number().optional(),
+        max_tokens: z.number().optional(),
+        presence_penalty: z.number().optional(),
+        frequency_penalty: z.number().optional(),
+        stop: z.union([z.string(), z.array(z.string())]).optional(),
+        response_format: z.any().optional(),
+        seed: z.number().optional(),
+        user: z.string().optional(),
+        n: z.number().int().optional(),
+        logit_bias: z.record(z.string(), z.number()).optional(),
+        parallel_tool_calls: z.boolean().optional(),
+        stream_options: z.any().optional(),
+    })
+    .passthrough()
+
+// Model configuration
+const ALLOWED_MODELS = [
+    "@tx/deepseek-ai/deepseek-v32",
+    "@tx/deepseek-ai/deepseek-r1-0528",
+    "@tx/deepseek-ai/deepseek-v3-0324",
+]
+
+const MODEL_ALIASES: Record<string, string> = {
+    "deepseek-v3.2": "@tx/deepseek-ai/deepseek-v32",
+    "deepseek-r1-0528": "@tx/deepseek-ai/deepseek-r1-0528",
+    "deepseek-v3-0324": "@tx/deepseek-ai/deepseek-v3-0324",
+}
+
+const CORS_HEADERS = {
+    "Access-Control-Allow-Origin": "*",
+    "Access-Control-Allow-Methods": "POST, OPTIONS",
+    "Access-Control-Allow-Headers": "Content-Type, Authorization",
+}
+
+/**
+ * Create standardized response with CORS headers
+ */
+function createResponse(body: any, status = 200, extraHeaders = {}): Response {
+    return new Response(JSON.stringify(body), {
+        status,
+        headers: {
+            "Content-Type": "application/json",
+            ...CORS_HEADERS,
+            ...extraHeaders,
+        },
+    })
+}
+
+/**
+ * Handle OPTIONS request for CORS preflight
+ */
+function handleOptionsRequest(): Response {
+    return new Response(null, {
+        headers: {
+            ...CORS_HEADERS,
+            "Access-Control-Max-Age": "86400",
+        },
+    })
+}
+
+export async function onRequest({ request, env }: any) {
+    if (request.method === "OPTIONS") {
+        return handleOptionsRequest()
+    }
+
+    request.headers.delete("accept-encoding")
+
+    try {
+        const json = await request.clone().json()
+        const parseResult = messageSchema.safeParse(json)
+
+        if (!parseResult.success) {
+            return createResponse(
+                {
+                    error: {
+                        message: parseResult.error.message,
+                        type: "invalid_request_error",
+                    },
+                },
+                400,
+            )
+        }
+
+        const { messages, model, stream, tools, tool_choice, ...extraParams } =
+            parseResult.data
+
+        // Validate messages
+        const userMessages = messages.filter(
+            (message) => message.role === "user",
+        )
+        if (!userMessages.length) {
+            return createResponse(
+                {
+                    error: {
+                        message: "No user message found",
+                        type: "invalid_request_error",
+                    },
+                },
+                400,
+            )
+        }
+
+        // Resolve model
+        const requestedModel = model || ALLOWED_MODELS[0]
+        const selectedModel = MODEL_ALIASES[requestedModel] || requestedModel
+
+        if (!ALLOWED_MODELS.includes(selectedModel)) {
+            return createResponse(
+                {
+                    error: {
+                        message: `Invalid model: ${requestedModel}.`,
+                        type: "invalid_request_error",
+                    },
+                },
+                429,
+            )
+        }
+
+        console.log(
+            `[EdgeOne] Model: ${selectedModel}, Tools: ${tools?.length || 0}, Stream: ${stream ?? true}`,
+        )
+
+        try {
+            const isStream = !!stream
+
+            // Non-streaming: return mock response for validation
+            // AI.chatCompletions doesn't support non-streaming mode
+            if (!isStream) {
+                const mockResponse = {
+                    id: `chatcmpl-${Date.now()}`,
+                    object: "chat.completion",
+                    created: Math.floor(Date.now() / 1000),
+                    model: selectedModel,
+                    choices: [
+                        {
+                            index: 0,
+                            message: {
+                                role: "assistant",
+                                content: "OK",
+                            },
+                            finish_reason: "stop",
+                        },
+                    ],
+                    usage: {
+                        prompt_tokens: 10,
+                        completion_tokens: 1,
+                        total_tokens: 11,
+                    },
+                }
+                return createResponse(mockResponse)
+            }
+
+            // Build AI.chatCompletions options for streaming
+            const aiOptions: any = {
+                ...extraParams,
+                model: selectedModel,
+                messages,
+                stream: true,
+            }
+
+            // Add tools if provided
+            if (tools && tools.length > 0) {
+                aiOptions.tools = tools
+            }
+            if (tool_choice !== undefined) {
+                aiOptions.tool_choice = tool_choice
+            }
+
+            const aiResponse = await AI.chatCompletions(aiOptions)
+
+            // Streaming response
+            return new Response(aiResponse, {
+                headers: {
+                    "Content-Type": "text/event-stream; charset=utf-8",
+                    "Cache-Control": "no-cache, no-store, no-transform",
+                    "X-Accel-Buffering": "no",
+                    Connection: "keep-alive",
+                    ...CORS_HEADERS,
+                },
+            })
+        } catch (error: any) {
+            // Handle EdgeOne specific errors
+            try {
+                const message = JSON.parse(error.message)
+                if (message.code === 14020) {
+                    return createResponse(
+                        {
+                            error: {
+                                message:
+                                    "The daily public quota has been exhausted. After deployment, you can enjoy a personal daily exclusive quota.",
+                                type: "rate_limit_error",
+                            },
+                        },
+                        429,
+                    )
+                }
+                return createResponse(
+                    { error: { message: error.message, type: "api_error" } },
+                    500,
+                )
+            } catch {
+                // Not a JSON error message
+            }
+
+            console.error("[EdgeOne] AI error:", error.message)
+            return createResponse(
+                {
+                    error: {
+                        message: error.message || "AI service error",
+                        type: "api_error",
+                    },
+                },
+                500,
+            )
+        }
+    } catch (error: any) {
+        console.error("[EdgeOne] Request error:", error.message)
+        return createResponse(
+            {
+                error: {
+                    message: "Request processing failed",
+                    type: "server_error",
+                    details: error.message,
+                },
+            },
+            500,
+        )
+    }
+}

edgeone.json

@@ -0,0 +1,5 @@
+{
+    "nodeFunctionsConfig": {
+        "maxDuration": 120
+    }
+}

lib/ai-providers.ts

@@ -21,6 +21,7 @@ export type ProviderName =
     | "siliconflow"
     | "sglang"
     | "gateway"
+    | "edgeone"
     | "doubao"
 
 interface ModelConfig {
@@ -40,6 +41,8 @@ export interface ClientOverrides {
     awsSecretAccessKey?: string | null
     awsRegion?: string | null
     awsSessionToken?: string | null
+    // Custom headers (e.g., for EdgeOne cookie auth)
+    headers?: Record<string, string>
 }
 
 // Providers that can be used with client-provided API keys
@@ -54,6 +57,7 @@ const ALLOWED_CLIENT_PROVIDERS: ProviderName[] = [
     "siliconflow",
     "sglang",
     "gateway",
+    "edgeone",
     "doubao",
 ]
 
@@ -375,6 +379,7 @@ const PROVIDER_ENV_VARS: Record<ProviderName, string | null> = {
     siliconflow: "SILICONFLOW_API_KEY",
     sglang: "SGLANG_API_KEY",
     gateway: "AI_GATEWAY_API_KEY",
+    edgeone: null, // No credentials needed - uses EdgeOne Edge AI
     doubao: "DOUBAO_API_KEY",
 }
 
@@ -463,7 +468,12 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
     // SECURITY: Prevent SSRF attacks (GHSA-9qf7-mprq-9qgm)
     // If a custom baseUrl is provided, an API key MUST also be provided.
     // This prevents attackers from redirecting server API keys to malicious endpoints.
-    if (overrides?.baseUrl && !overrides?.apiKey) {
+    // Exception: EdgeOne provider doesn't require API key (uses Edge AI runtime)
+    if (
+        overrides?.baseUrl &&
+        !overrides?.apiKey &&
+        overrides?.provider !== "edgeone"
+    ) {
         throw new Error(
             `API key is required when using a custom base URL. ` +
                 `Please provide your own API key in Settings.`,
@@ -840,6 +850,21 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             break
         }
 
+        case "edgeone": {
+            // EdgeOne Pages Edge AI - uses OpenAI-compatible API
+            // AI SDK appends /chat/completions to baseURL
+            // /api/edgeai + /chat/completions = /api/edgeai/chat/completions
+            const baseURL = overrides?.baseUrl || "/api/edgeai"
+            const edgeoneProvider = createOpenAI({
+                apiKey: "edgeone", // Dummy key - EdgeOne doesn't require API key
+                baseURL,
+                // Pass cookies for EdgeOne Pages authentication (eo_token, eo_time)
+                ...(overrides?.headers && { headers: overrides.headers }),
+            })
+            model = edgeoneProvider.chat(modelId)
+            break
+        }
+
         case "doubao": {
             const apiKey = overrides?.apiKey || process.env.DOUBAO_API_KEY
             const baseURL =
@@ -856,7 +881,7 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
 
         default:
             throw new Error(
-                `Unknown AI provider: ${provider}. Supported providers: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow, sglang, gateway, doubao`,
+                `Unknown AI provider: ${provider}. Supported providers: bedrock, openai, anthropic, google, azure, ollama, openrouter, deepseek, siliconflow, sglang, gateway, edgeone, doubao`,
             )
     }
 

lib/i18n/dictionaries/en.json

@@ -46,6 +46,7 @@
         "copyResponse": "Copy response",
         "copied": "Copied!",
         "failedToCopy": "Failed to copy",
+        "failedToCopyDetail": "Failed to copy message. Please copy manually or check clipboard permissions.",
         "goodResponse": "Good response",
         "badResponse": "Bad response",
         "clickToEdit": "Click to edit",
@@ -141,6 +142,7 @@
         "invalidAccessCode": "Invalid or missing access code. Please configure it in Settings.",
         "networkError": "Network error. Please check your connection.",
         "retryLimit": "Auto-retry limit reached ({max}). Please try again manually.",
+        "continuationRetryLimit": "Continuation retry limit reached ({max}). The diagram may be too complex.",
         "validationFailed": "Diagram validation failed. Please try regenerating.",
         "malformedXml": "AI generated invalid diagram XML. Please try regenerating.",
         "failedToProcess": "Failed to process diagram. Please try regenerating.",
@@ -149,7 +151,9 @@
         "failedToRestore": "Failed to restore from localStorage",
         "failedToPersist": "Failed to persist state before unload",
         "failedToExport": "Error fetching chart data",
-        "failedToLoadExample": "Error loading example image"
+        "failedToLoadExample": "Error loading example image",
+        "failedToRecordFeedback": "Failed to record your feedback. Please try again.",
+        "storageUpdateFailed": "Chat cleared but browser storage could not be updated"
     },
     "quota": {
         "dailyLimit": "Daily Quota Reached",
@@ -186,6 +190,21 @@
         "thoughtFor": "Thought for {duration} seconds",
         "thoughtBrief": "Thought for a few seconds"
     },
+    "dev": {
+        "title": "Dev: XML Streaming Simulator",
+        "preset": "Preset:",
+        "selectPreset": "Select a preset...",
+        "clear": "Clear",
+        "placeholder": "Paste mxCell XML here or select a preset...",
+        "interval": "Interval:",
+        "chars": "Chars:",
+        "streaming": "Streaming...",
+        "simulate": "Simulate",
+        "stop": "Stop",
+        "testQuotaToast": "Test Quota Toast",
+        "simulatingMessage": "[Dev] Simulating XML streaming",
+        "successMessage": "Successfully displayed the diagram."
+    },
     "about": {
         "modelChange": "Model Change & Usage Limits",
         "walletCrying": "(Or: Why My Wallet is Crying)",

lib/i18n/dictionaries/ja.json

@@ -46,6 +46,7 @@
         "copyResponse": "応答をコピー",
         "copied": "コピーしました！",
         "failedToCopy": "コピーに失敗しました",
+        "failedToCopyDetail": "メッセージのコピーに失敗しました。手動でコピーするか、クリップボードの権限を確認してください。",
         "goodResponse": "良い応答",
         "badResponse": "悪い応答",
         "clickToEdit": "クリックして編集",
@@ -141,6 +142,7 @@
         "invalidAccessCode": "無効または欠落したアクセスコード。設定で入力してください。",
         "networkError": "ネットワークエラー。接続を確認してください。",
         "retryLimit": "自動再試行制限に達しました（{max}）。手動で再試行してください。",
+        "continuationRetryLimit": "継続再試行制限に達しました（{max}）。ダイアグラムが複雑すぎる可能性があります。",
         "validationFailed": "ダイアグラムの検証に失敗しました。再生成してみてください。",
         "malformedXml": "AI が無効なダイアグラム XML を生成しました。再生成してみてください。",
         "failedToProcess": "ダイアグラムの処理に失敗しました。再生成してみてください。",
@@ -149,7 +151,9 @@
         "failedToRestore": "localStorage からの復元に失敗しました",
         "failedToPersist": "アンロード前の状態の永続化に失敗しました",
         "failedToExport": "チャートデータの取得エラー",
-        "failedToLoadExample": "例の画像の読み込みエラー"
+        "failedToLoadExample": "例の画像の読み込みエラー",
+        "failedToRecordFeedback": "フィードバックの記録に失敗しました。もう一度お試しください。",
+        "storageUpdateFailed": "チャットはクリアされましたが、ブラウザストレージを更新できませんでした"
     },
     "quota": {
         "dailyLimit": "1日の割当量に達しました",
@@ -186,6 +190,21 @@
         "thoughtFor": "{duration} 秒考えました",
         "thoughtBrief": "数秒考えました"
     },
+    "dev": {
+        "title": "開発：XMLストリーミングシミュレーター",
+        "preset": "プリセット：",
+        "selectPreset": "プリセットを選択...",
+        "clear": "クリア",
+        "placeholder": "ここに mxCell XML を貼り付けるか、プリセットを選択...",
+        "interval": "間隔：",
+        "chars": "文字：",
+        "streaming": "ストリーミング中...",
+        "simulate": "シミュレート",
+        "stop": "停止",
+        "testQuotaToast": "クォータトーストをテスト",
+        "simulatingMessage": "[開発] XMLストリーミングをシミュレート中",
+        "successMessage": "ダイアグラムの表示に成功しました。"
+    },
     "about": {
         "modelChange": "モデル変更と利用制限について",
         "walletCrying": "（別名：お財布が悲鳴を上げています）",

lib/i18n/dictionaries/zh.json

@@ -46,6 +46,7 @@
         "copyResponse": "复制响应",
         "copied": "已复制！",
         "failedToCopy": "复制失败",
+        "failedToCopyDetail": "复制消息失败。请手动复制或检查剪贴板权限。",
         "goodResponse": "有帮助",
         "badResponse": "无帮助",
         "clickToEdit": "点击编辑",
@@ -141,6 +142,7 @@
         "invalidAccessCode": "无效或缺少访问码。请在设置中配置。",
         "networkError": "网络错误。请检查您的连接。",
         "retryLimit": "已达到自动重试限制（{max}）。请手动重试。",
+        "continuationRetryLimit": "已达到继续重试限制（{max}）。图表可能过于复杂。",
         "validationFailed": "图表验证失败。请尝试重新生成。",
         "malformedXml": "AI 生成的图表 XML 无效。请尝试重新生成。",
         "failedToProcess": "无法处理图表。请尝试重新生成。",
@@ -149,7 +151,9 @@
         "failedToRestore": "无法从 localStorage 恢复",
         "failedToPersist": "卸载前无法持久化状态",
         "failedToExport": "获取图表数据时出错",
-        "failedToLoadExample": "加载示例图片时出错"
+        "failedToLoadExample": "加载示例图片时出错",
+        "failedToRecordFeedback": "记录您的反馈失败。请重试。",
+        "storageUpdateFailed": "聊天已清除，但无法更新浏览器存储"
     },
     "quota": {
         "dailyLimit": "已达每日配额",
@@ -186,6 +190,21 @@
         "thoughtFor": "思考了 {duration} 秒",
         "thoughtBrief": "思考了几秒钟"
     },
+    "dev": {
+        "title": "开发：XML 流式模拟器",
+        "preset": "预设：",
+        "selectPreset": "选择预设...",
+        "clear": "清除",
+        "placeholder": "在此粘贴 mxCell XML 或选择预设...",
+        "interval": "间隔：",
+        "chars": "字符：",
+        "streaming": "流式传输中...",
+        "simulate": "模拟",
+        "stop": "停止",
+        "testQuotaToast": "测试配额提示",
+        "simulatingMessage": "[开发] 模拟 XML 流式传输",
+        "successMessage": "成功显示图表。"
+    },
     "about": {
         "modelChange": "模型变更与用量限制",
         "walletCrying": "（别名：我的钱包顶不住了）",

lib/system-prompts.ts

@@ -276,7 +276,7 @@ edit_diagram uses ID-based operations to modify cells directly by their id attri
 **Operations:**
 - **update**: Replace an existing cell. Provide cell_id and new_xml.
 - **add**: Add a new cell. Provide cell_id (new unique id) and new_xml.
-- **delete**: Remove a cell. Only cell_id is needed.
+- **delete**: Remove a cell. **Cascade is automatic**: children AND edges (source/target) are auto-deleted. Only specify ONE cell_id.
 
 **Input Format:**
 \`\`\`json
@@ -301,9 +301,9 @@ Add new shape:
 {"operations": [{"operation": "add", "cell_id": "new1", "new_xml": "<mxCell id=\\"new1\\" value=\\"New Box\\" style=\\"rounded=1;fillColor=#dae8fc;\\" vertex=\\"1\\" parent=\\"1\\">\\n  <mxGeometry x=\\"400\\" y=\\"200\\" width=\\"120\\" height=\\"60\\" as=\\"geometry\\"/>\\n</mxCell>"}]}
 \`\`\`
 
-Delete cell:
+Delete container (children & edges auto-deleted):
 \`\`\`json
-{"operations": [{"operation": "delete", "cell_id": "5"}]}
+{"operations": [{"operation": "delete", "cell_id": "2"}]}
 \`\`\`
 
 **Error Recovery:**

lib/types/model-config.ts

@@ -11,6 +11,7 @@ export type ProviderName =
     | "siliconflow"
     | "sglang"
     | "gateway"
+    | "edgeone"
     | "doubao"
 
 // Individual model configuration
@@ -85,6 +86,7 @@ export const PROVIDER_INFO: Record<
         defaultBaseUrl: "http://127.0.0.1:8000/v1",
     },
     gateway: { label: "AI Gateway" },
+    edgeone: { label: "EdgeOne Pages" },
     doubao: {
         label: "Doubao (ByteDance)",
         defaultBaseUrl: "https://ark.cn-beijing.volces.com/api/v3",
@@ -219,6 +221,7 @@ export const SUGGESTED_MODELS: Record<ProviderName, string[]> = {
         "anthropic/claude-3-5-sonnet",
         "google/gemini-2.0-flash",
     ],
+    edgeone: ["@tx/deepseek-ai/deepseek-v32"],
     doubao: [
         // ByteDance Doubao models
         "doubao-1.5-thinking-pro-250415",

lib/utils.ts

@@ -633,32 +633,77 @@ export function applyDiagramOperations(
             // Add to map
             cellMap.set(op.cell_id, importedNode)
         } else if (op.operation === "delete") {
-            const existingCell = cellMap.get(op.cell_id)
-            if (!existingCell) {
+            // Protect root cells from deletion
+            if (op.cell_id === "0" || op.cell_id === "1") {
                 errors.push({
                     type: "delete",
                     cellId: op.cell_id,
-                    message: `Cell with id="${op.cell_id}" not found`,
+                    message: `Cannot delete root cell "${op.cell_id}"`,
                 })
                 continue
             }
 
-            // Check for edges referencing this cell (warning only, still delete)
-            const referencingEdges = root.querySelectorAll(
-                `mxCell[source="${op.cell_id}"], mxCell[target="${op.cell_id}"]`,
-            )
-            if (referencingEdges.length > 0) {
-                const edgeIds = Array.from(referencingEdges)
-                    .map((e) => e.getAttribute("id"))
-                    .join(", ")
-                console.warn(
-                    `[applyDiagramOperations] Deleting cell "${op.cell_id}" which is referenced by edges: ${edgeIds}`,
+            const existingCell = cellMap.get(op.cell_id)
+            if (!existingCell) {
+                // Cell not found - might have been cascade-deleted by a previous operation
+                // Skip silently instead of erroring (AI may redundantly list children/edges)
+                continue
+            }
+
+            // Cascade delete: collect all cells to delete (children + edges + self)
+            const cellsToDelete = new Set<string>()
+
+            // Recursive function to find all descendants
+            const collectDescendants = (cellId: string) => {
+                if (cellsToDelete.has(cellId)) return
+                cellsToDelete.add(cellId)
+
+                // Find children (cells where parent === cellId)
+                const children = root.querySelectorAll(
+                    `mxCell[parent="${cellId}"]`,
+                )
+                children.forEach((child) => {
+                    const childId = child.getAttribute("id")
+                    if (childId && childId !== "0" && childId !== "1") {
+                        collectDescendants(childId)
+                    }
+                })
+            }
+
+            // Collect the target cell and all its descendants
+            collectDescendants(op.cell_id)
+
+            // Find edges referencing any of the cells to be deleted
+            // Also recursively collect children of those edges (e.g., edge labels)
+            for (const cellId of cellsToDelete) {
+                const referencingEdges = root.querySelectorAll(
+                    `mxCell[source="${cellId}"], mxCell[target="${cellId}"]`,
+                )
+                referencingEdges.forEach((edge) => {
+                    const edgeId = edge.getAttribute("id")
+                    // Protect root cells from being added via edge references
+                    if (edgeId && edgeId !== "0" && edgeId !== "1") {
+                        // Recurse to collect edge's children (like labels)
+                        collectDescendants(edgeId)
+                    }
+                })
+            }
+
+            // Log what will be deleted
+            if (cellsToDelete.size > 1) {
+                console.log(
+                    `[applyDiagramOperations] Cascade delete "${op.cell_id}" → deleting ${cellsToDelete.size} cells: ${Array.from(cellsToDelete).join(", ")}`,
                 )
             }
 
-            // Remove the node
-            existingCell.parentNode?.removeChild(existingCell)
-            cellMap.delete(op.cell_id)
+            // Delete all collected cells
+            for (const cellId of cellsToDelete) {
+                const cell = cellMap.get(cellId)
+                if (cell) {
+                    cell.parentNode?.removeChild(cell)
+                    cellMap.delete(cellId)
+                }
+            }
         }
     }
 

package.json

@@ -88,6 +88,11 @@
         "unpdf": "^1.4.0",
         "zod": "^4.1.12"
     },
+    "optionalDependencies": {
+        "lightningcss": "^1.30.2",
+        "lightningcss-linux-x64-gnu": "^1.30.2",
+        "@tailwindcss/oxide-linux-x64-gnu": "^4.1.18"
+    },
     "lint-staged": {
         "*.{js,ts,jsx,tsx,json,css}": [
             "biome check --write --no-errors-on-unmatched",

packages/mcp-server/README.md

@@ -97,7 +97,7 @@ Use the standard MCP configuration with:
 | Tool | Description |
 |------|-------------|
 | `start_session` | Opens browser with real-time diagram preview |
-| `display_diagram` | Create a new diagram from XML |
+| `create_new_diagram` | Create a new diagram from XML (requires `xml` argument) |
 | `edit_diagram` | Edit diagram by ID-based operations (update/add/delete cells) |
 | `get_diagram` | Get the current diagram XML |
 | `export_diagram` | Save diagram to a `.drawio` file |

packages/mcp-server/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@next-ai-drawio/mcp-server",
-    "version": "0.1.6",
+    "version": "0.1.10",
     "description": "MCP server for Next AI Draw.io - AI-powered diagram generation with real-time browser preview",
     "type": "module",
     "main": "dist/index.js",

packages/mcp-server/src/diagram-operations.ts

@@ -182,32 +182,77 @@ export function applyDiagramOperations(
             // Add to map
             cellMap.set(op.cell_id, importedNode)
         } else if (op.operation === "delete") {
-            const existingCell = cellMap.get(op.cell_id)
-            if (!existingCell) {
+            // Protect root cells from deletion
+            if (op.cell_id === "0" || op.cell_id === "1") {
                 errors.push({
                     type: "delete",
                     cellId: op.cell_id,
-                    message: `Cell with id="${op.cell_id}" not found`,
+                    message: `Cannot delete root cell "${op.cell_id}"`,
                 })
                 continue
             }
 
-            // Check for edges referencing this cell (warning only, still delete)
-            const referencingEdges = root.querySelectorAll(
-                `mxCell[source="${op.cell_id}"], mxCell[target="${op.cell_id}"]`,
-            )
-            if (referencingEdges.length > 0) {
-                const edgeIds = Array.from(referencingEdges)
-                    .map((e) => e.getAttribute("id"))
-                    .join(", ")
-                console.warn(
-                    `[applyDiagramOperations] Deleting cell "${op.cell_id}" which is referenced by edges: ${edgeIds}`,
+            const existingCell = cellMap.get(op.cell_id)
+            if (!existingCell) {
+                // Cell not found - might have been cascade-deleted by a previous operation
+                // Skip silently instead of erroring (AI may redundantly list children/edges)
+                continue
+            }
+
+            // Cascade delete: collect all cells to delete (children + edges + self)
+            const cellsToDelete = new Set<string>()
+
+            // Recursive function to find all descendants
+            const collectDescendants = (cellId: string) => {
+                if (cellsToDelete.has(cellId)) return
+                cellsToDelete.add(cellId)
+
+                // Find children (cells where parent === cellId)
+                const children = root.querySelectorAll(
+                    `mxCell[parent="${cellId}"]`,
+                )
+                children.forEach((child) => {
+                    const childId = child.getAttribute("id")
+                    if (childId && childId !== "0" && childId !== "1") {
+                        collectDescendants(childId)
+                    }
+                })
+            }
+
+            // Collect the target cell and all its descendants
+            collectDescendants(op.cell_id)
+
+            // Find edges referencing any of the cells to be deleted
+            // Also recursively collect children of those edges (e.g., edge labels)
+            for (const cellId of cellsToDelete) {
+                const referencingEdges = root.querySelectorAll(
+                    `mxCell[source="${cellId}"], mxCell[target="${cellId}"]`,
+                )
+                referencingEdges.forEach((edge) => {
+                    const edgeId = edge.getAttribute("id")
+                    // Protect root cells from being added via edge references
+                    if (edgeId && edgeId !== "0" && edgeId !== "1") {
+                        // Recurse to collect edge's children (like labels)
+                        collectDescendants(edgeId)
+                    }
+                })
+            }
+
+            // Log what will be deleted
+            if (cellsToDelete.size > 1) {
+                console.log(
+                    `[applyDiagramOperations] Cascade delete "${op.cell_id}" → deleting ${cellsToDelete.size} cells: ${Array.from(cellsToDelete).join(", ")}`,
                 )
             }
 
-            // Remove the node
-            existingCell.parentNode?.removeChild(existingCell)
-            cellMap.delete(op.cell_id)
+            // Delete all collected cells
+            for (const cellId of cellsToDelete) {
+                const cell = cellMap.get(cellId)
+                if (cell) {
+                    cell.parentNode?.removeChild(cell)
+                    cellMap.delete(cellId)
+                }
+            }
         }
     }
 

packages/mcp-server/src/index.ts

@@ -78,7 +78,7 @@ server.prompt(
 
 ## Creating a New Diagram
 1. Call start_session to open the browser preview
-2. Use display_diagram with complete mxGraphModel XML to create a new diagram
+2. Use create_new_diagram with complete mxGraphModel XML to create a new diagram
 
 ## Adding Elements to Existing Diagram
 1. Use edit_diagram with "add" operation
@@ -91,7 +91,7 @@ server.prompt(
 3. For update, provide the cell_id and complete new mxCell XML
 
 ## Important Notes
-- display_diagram REPLACES the entire diagram - only use for new diagrams
+- create_new_diagram REPLACES the entire diagram - only use for new diagrams
 - edit_diagram PRESERVES user's manual changes (fetches browser state first)
 - Always use unique cell_ids when adding elements (e.g., "shape-1", "arrow-2")`,
                 },
@@ -150,19 +150,59 @@ server.registerTool(
     },
 )
 
-// Tool: display_diagram
+// Tool: create_new_diagram
 server.registerTool(
-    "display_diagram",
+    "create_new_diagram",
     {
-        description:
-            "Display a NEW draw.io diagram from XML. REPLACES the entire diagram. " +
-            "Use this for creating new diagrams from scratch. " +
-            "To ADD elements to an existing diagram, use edit_diagram with 'add' operation instead. " +
-            "You should generate valid draw.io/mxGraph XML format.",
+        description: `Create a NEW diagram from mxGraphModel XML. Use this when creating a diagram from scratch or replacing the current diagram entirely.
+
+CRITICAL: You MUST provide the 'xml' argument in EVERY call. Do NOT call this tool without xml.
+
+When to use this tool:
+- Creating a new diagram from scratch
+- Replacing the current diagram with a completely different one
+- Major structural changes that require regenerating the diagram
+
+When to use edit_diagram instead:
+- Small modifications to existing diagram
+- Adding/removing individual elements
+- Changing labels, colors, or positions
+
+XML FORMAT - Full mxGraphModel structure:
+<mxGraphModel>
+  <root>
+    <mxCell id="0"/>
+    <mxCell id="1" parent="0"/>
+    <mxCell id="2" value="Shape" style="rounded=1;" vertex="1" parent="1">
+      <mxGeometry x="100" y="100" width="120" height="60" as="geometry"/>
+    </mxCell>
+  </root>
+</mxGraphModel>
+
+LAYOUT CONSTRAINTS:
+- Keep all elements within x=0-800, y=0-600 (single page viewport)
+- Start from margins (x=40, y=40), keep elements grouped closely
+- Use unique IDs starting from "2" (0 and 1 are reserved)
+- Set parent="1" for top-level shapes
+- Space shapes 150-200px apart for clear edge routing
+
+EDGE ROUTING RULES:
+- Never let multiple edges share the same path - use different exitY/entryY values
+- For bidirectional connections (A↔B), use OPPOSITE sides
+- Always specify exitX, exitY, entryX, entryY explicitly in edge style
+- Route edges AROUND obstacles using waypoints (add 20-30px clearance)
+- Use natural connection points based on flow (not corners)
+
+COMMON STYLES:
+- Shapes: rounded=1; fillColor=#hex; strokeColor=#hex
+- Edges: endArrow=classic; edgeStyle=orthogonalEdgeStyle; curved=1
+- Text: fontSize=14; fontStyle=1 (bold); align=center`,
         inputSchema: {
             xml: z
                 .string()
-                .describe("The draw.io XML to display (mxGraphModel format)"),
+                .describe(
+                    "REQUIRED: The complete mxGraphModel XML. Must always be provided.",
+                ),
         },
     },
     async ({ xml: inputXml }) => {
@@ -199,7 +239,7 @@ server.registerTool(
                 }
             }
 
-            log.info(`Displaying diagram, ${xml.length} chars`)
+            log.info(`Setting diagram content, ${xml.length} chars`)
 
             // Sync from browser state first
             const browserState = getState(currentSession.id)
@@ -226,20 +266,20 @@ server.registerTool(
             // Save AI result (no SVG yet - will be captured by browser)
             addHistory(currentSession.id, xml, "")
 
-            log.info(`Diagram displayed successfully`)
+            log.info(`Diagram content set successfully`)
 
             return {
                 content: [
                     {
                         type: "text",
-                        text: `Diagram displayed successfully!\n\nThe diagram is now visible in your browser.\n\nXML length: ${xml.length} characters`,
+                        text: `Diagram content set successfully!\n\nThe diagram is now visible in your browser.\n\nXML length: ${xml.length} characters`,
                     },
                 ],
             }
         } catch (error) {
             const message =
                 error instanceof Error ? error.message : String(error)
-            log.error("display_diagram failed:", message)
+            log.error("create_new_diagram failed:", message)
             return {
                 content: [{ type: "text", text: `Error: ${message}` }],
                 isError: true,
@@ -340,7 +380,7 @@ server.registerTool(
                     content: [
                         {
                             type: "text",
-                            text: "Error: No diagram to edit. Please create a diagram first with display_diagram.",
+                            text: "Error: No diagram to edit. Please create a diagram first with create_new_diagram.",
                         },
                     ],
                     isError: true,
@@ -474,7 +514,7 @@ server.registerTool(
                     content: [
                         {
                             type: "text",
-                            text: "No diagram exists yet. Use display_diagram to create one.",
+                            text: "No diagram exists yet. Use create_new_diagram to create one.",
                         },
                     ],
                 }

proxy.ts

@@ -0,0 +1,63 @@
+import { match as matchLocale } from "@formatjs/intl-localematcher"
+import Negotiator from "negotiator"
+import type { NextRequest } from "next/server"
+import { NextResponse } from "next/server"
+import { i18n } from "./lib/i18n/config"
+
+function getLocale(request: NextRequest): string | undefined {
+    // Negotiator expects plain object so we need to transform headers
+    const negotiatorHeaders: Record<string, string> = {}
+    request.headers.forEach((value, key) => {
+        negotiatorHeaders[key] = value
+    })
+
+    // @ts-expect-error locales are readonly
+    const locales: string[] = i18n.locales
+
+    // Use negotiator and intl-localematcher to get best locale
+    const languages = new Negotiator({ headers: negotiatorHeaders }).languages(
+        locales,
+    )
+
+    const locale = matchLocale(languages, locales, i18n.defaultLocale)
+
+    return locale
+}
+
+export function proxy(request: NextRequest) {
+    const pathname = request.nextUrl.pathname
+
+    // Skip API routes, static files, and Next.js internals
+    if (
+        pathname.startsWith("/api/") ||
+        pathname.startsWith("/_next/") ||
+        pathname.includes("/favicon") ||
+        /\.(.*)$/.test(pathname)
+    ) {
+        return
+    }
+
+    // Check if there is any supported locale in the pathname
+    const pathnameIsMissingLocale = i18n.locales.every(
+        (locale) =>
+            !pathname.startsWith(`/${locale}/`) && pathname !== `/${locale}`,
+    )
+
+    // Redirect if there is no locale
+    if (pathnameIsMissingLocale) {
+        const locale = getLocale(request)
+
+        // Redirect to localized path
+        return NextResponse.redirect(
+            new URL(
+                `/${locale}${pathname.startsWith("/") ? "" : "/"}${pathname}`,
+                request.url,
+            ),
+        )
+    }
+}
+
+export const config = {
+    // Matcher ignoring `/_next/` and `/api/`
+    matcher: ["/((?!api|_next/static|_next/image|favicon.ico).*)"],
+}